Results 21 to 30 of about 4,008,231 (293)
Optimizing Baffle Length for Mixed Convective Flow Within a Ventilated Square Cavity with Discrete Heat Sources Mounted at Side Walls [PDF]
Journal of Heat and Mass Transfer ResearchMixed convection within a ventilated square cavity with a baffle at the bottom wall and heating elements at the side walls has been analyzed. The inlet opening has been set at the bottom of the left wall, while the exit opening is put at the bottom of ...
Saad Been Mosharof +3 more
doaj +1 more source
Adaptive Fuzzy Neural Network PID Algorithm for BLDCM Speed Control System
Mathematics, 2021 Because of its simple structure, high efficiency, low noise, and high reliability, the brushless direct current motor (BLDCM) has an irreplaceable role compared with other types of motors in many aspects. The traditional proportional integral derivative (
Hongqiao Yin +4 more
doaj +1 more source
Effect of mummy powder and Pulicaria gnaphalodes extract on growth performance, immune system and intestine morphology of broiler chickens [PDF]
پژوهشهای علوم دامی ایران, 2021 Introduction Mummies are the brown or black hydrocarbon that are produced deep layers of earth or mountain and contain a significant percentage of benzoic acid, humic acid, and folic acid, fatty acids, inulin, and resins.
Faezeh Ahmadzade +3 more
doaj +1 more source
A New Stiffness Performance Index: Volumetric Isotropy Index [PDF]
Machines, 2019 A new index for a precise calculation of a manipulator’s stiffness isotropy is introduced. The proposed index is compared with the conventionally used stiffness isotropy index by making use of the investigation on R-CUBE manipulator. The proposed index is shown to produce relatively more precise results from which a higher number of isotropic poses are
İbrahimcan Görgülü +1 more
openaire +4 more sources
The Reliability of Linear Speed with and without Ball Possession of Pubertal Soccer Players
Journal of Functional Morphology and Kinesiology, 2023 Reliable fitness tests with low day-to-day and trial-to-trial variation are a prerequisite for tracking a player’s performance or for identifying meaningful changes in training interventions.
Nikolaos Manouras +4 more
doaj +1 more source
Association of Sex-Related Differences in Body Composition to Change of Direction Speed in Police Officers While Carrying Load [PDF]
, 2020 Regardless of sex or body size, police tasks may require officers to change direction speed (CODS) under occupational loads. The purpose of this study was to investigate body composition and CODS in female and male police cadets in both unloaded and ...
Cvorovic, Aleksandar +7 more
core +1 more source
Applied Sciences, 2018 This paper first integrates big data tools—Hive, Impala, and SparkSQL—which support SQL-like queries for rapid data retrieval in big data. The three introduced tools are not only suitable for operating in business intelligence to serve high ...
Bao Rong Chang +2 more
doaj +1 more source
Energies, 2023 To describe the degradation of proton exchange membrane fuel cells (PEMFCs), empirical degradation models of different indexes of PEMFCs are established. Firstly, the simulation process and assumptions of PEMFC degradation are proposed.
Lei Fan +4 more
doaj +1 more source
Comprehensive characterization of an open source document search engine [PDF]
, 2019 This work performs a thorough characterization and analysis of the open source Lucene search library. The article describes in detail the architecture, functionality, and micro-architectural behavior of the search engine, and investigates prominent ...
Antoniou, Georgia +4 more
core +1 more source
Role of refractive index in metalens performance [PDF]
Applied Optics, 2019 Sub-wavelength diffractive optics, commonly known as metasurfaces, have recently garnered significant attention for their ability to create ultra-thin flat lenses with extremely short focal lengths. Several materials with different refractive indices have been used to create metasurface lenses (metalenses).
Elyas Bayati +4 more
openaire +3 more sources